This is topic exhaust question in forum Tech Talk at Northern California Ford Owners .
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Posted by foxstang (Member # 7447) on
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when is 2.5 in piping too small. how much hp till u would need something bigger?
Posted by mastercudaz (Member # 7486) on
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I think there is a flow forumla, you can probably google it, but I thoughtk the general rule was that 2.5" true duals are good up to 400+ horsepower.
Posted by 92stangLX (Member # 3252) on
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2.5" will support a shitload of HP. Probably like 600+. With 3" exhaust you tend to loose quite a bit of torque at the low end.
Posted by jaejae (Member # 7958) on
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2.5 is fine..3 inch would lose low end tourqe but would be louder
Posted by 91CHP_Coupe (Member # 7686) on
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quote:
Originally posted by 92stangLX:
2.5" will support a shitload of HP. Probably like 600+. With 3" exhaust you tend to loose quite a bit of torque at the low end.
+1 Ive seen 500 hp to the rears with 2 1/2 in.
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